查询词典 noise-power-ratio

When a noise signal is present, a pilot signal and noise signal passing through a capacitor are applied to the inverting input port of the subtracter via a second MOS transistor to cancel the noise signal contained in the composite input signal.

当噪声信号时，一个试验信号与噪声信号通过电容通过应用通过一个晶体管第二马鞍山到减法反相输入端口，取消噪声信号的复合输入信号中。

Especially , with the wide use of the low noise microwave receiver model of "low noise amplifier - mixer - intermediate frequency amplifier", the rejection to image frequency interference has become the last problem how to make the whole receivers noise low and resist interference.

尤其是随着"低噪声放大器——混频器——中频放大器"这种低噪声微波接收机模型的广泛使用，对镜频干扰的抑制已逐渐成为整机低噪声、抗干扰的最后难题。

Has the scientist to do the experiment: When noise intensity when 90 decibels, in retina's rod cell difference radiance's sensitivity starts to drop, distinguishes the time which the weak light responded also to lengthen; When noise when 95 decibels, some 2/5 person mydriasis; When the noise amounts to 115 decibels, the eye reduces 20% to the radiance compatibility.

有科学家做过实验：当噪音强度在90分贝时，视网膜中的视杆细胞区别光亮度的敏感性开始下降，识别弱光反应的时间也延长；当噪音在95分贝时，有五分之二的人瞳孔放大；当噪音达到115分贝时，眼睛对光亮度的适应性降低20%。

White noise generator, the use of white noise generator white noise.

详细说明：白噪声发生器，利用白噪声发生器产生白噪声。

On the basis of typical photon noise model of the electro-optical imaging system, a real-time photon noise generator has been developed for producing photon noise which gives influence to the results of electro-optical imaging devices.

当将光子噪声实时地叠加到计算机生成的分辨力图案上，首次实现了定量环境下典型的真实光量子噪声的实时仿真叠加。

Lesson 25 Non-auditory effects of noise May people in industry and the Services, who have practical experience of noise, regard any investigation of this question as a waste of time; they are not prepared even to admit the possibility that noise affects people.

参考译文在工业部门工作和在军队中服役的许多人对噪声音有切身的体会，他们认为对这个问题进行调查中浪费时间，甚至不愿承认噪音可能对人有影响。

Some significative conclusions are founded out in the dissertation. The evolution of securities investor behaviors bears multi-equilibrium characteristics, namely, possibly converging to the equilibrium of complete value investment, or full noise trade, or coexistence of former two behaviors. And its evolution path and equilibrium are affected not only investor's payoff function and initial state of securities market, but expect error of noise traders, noise trade risk and so on.

通过研究发现，证券投资者行为的进化呈现出多重均衡的结构特征，既可能收敛于完全价值投资、也可能收敛于完全噪声交易、还可能收敛于价值投资和噪声交易共存的均衡点，而具体的路径选择和均衡不仅受到投资者的支付函数、证券市场初始状态的影响，而且与噪声交易者对风险资产收益的预测偏差、噪声交易者风险等因素有关。

Based on frequency spectrum of each point, amplitude spectrum of structure-borne noise and testing results of air-borne noise, the authors analyze the vibration characters and latent faults of double-ring gear reducer, coming to the value and the cause of the noise, providing theoretical basis f...

结合各测点频谱图、结构噪声幅值图谱和空气噪声测试结果，分析了双环减速器振动特性及可能存在的故障，得出其噪声值和噪声产生的原因，为设计双环减速器，减小其振动噪声提供理论依据。

This paper introduces the causes of noise generation and propagation of indoor water supply and sewerage system , probes into the corresponding solution of controlling indoor noise, mainly discusses water pump house oscillation reducing and noise isolating, selection of drain pipe material and control of velocity and pressure of water supply pipe.

介绍了建筑室内给水排水系统噪声产生与传播的原因，探讨了控制建筑室内噪声的相应对策，重点论述了给水泵房的设置、水泵机组的减振隔声、排水管材的选择、给水管道流速和压力的控制等内容。

This paper reviewed the advances of noise barrier structure in China, and illustrated the development of multiple-edged, T-shaped and Y-shaped top structures used for noise barriers abroad. The development of some new top structures, such as soft surface, quadratic residue diffusers surface of noise barriers was also introduced.

作者对国内声屏障结构形式的现状进行了分析，介绍了国外常见的多重边、T型、Y型等顶部结构的发展情况，同时介绍了声学软表面、平方余数序列表面等新型顶部结构的发展状况。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。